Provning av metalliska material

Kommittébeteckning: SIS/TK 122 (Kemiska analysmetoder för metaller)
Källa: CEN
Svarsdatum: den 20 aug 2018
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This document specifies a flame atomic absorption spectrometric method (FAAS) for the determination of calcium content in non-alloy and low alloy steels.

The method is applicable to calcium contents between 0,000 4 % and 0,012 %.

The method can be adapted to higher calcium contents by changing the test portion or the dilution process, provided the criteria in 6.2.2 and 6.2.3 are still met.

Kommittébeteckning: SIS/TK 122 (Kemiska analysmetoder för metaller)
Källa: CEN
Svarsdatum: den 20 aug 2018
Se merSe mindre
 

This document specifies a flame atomic absorption spectrometric method (FAAS) for the determination of lead content in non-alloy and low alloy steels.

The method is applicable to lead contents between 0,005 % and 0,5 %.

The method can be adapted to lower or higher lead contents by changing the test portion or the dilution process, provided the criteria in 6.2.2 and 6.2.3 are still met.

Kommittébeteckning: SIS/TK 121 (Bestämning av mikrostruktur i stål)
Källa: SIS
Svarsdatum: den 2 sep 2018
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This standard describes a method for assessment and reporting of quantity, size, morphology and distribution of non-metallic inclusions in plastic wrought steel, metals and alloys with the help of a Light Optical Microscope (LOM) and a comparative chart. The pictures in the chart are based on the logarithmic Gauss-(Galton) distribution with respect to the inclusion size.

The method described in this standard is primarily intended for inclusions in plastic wrought metallic materials but can also be used for cast and sintered steels.

NOTE The chemical composition of the inclusions does not form the basis of categorisation.